Double Compressor Air Conditioning Cycle Training Bench

A Double-Compressor Air Conditioning Cycle Training Bench for studying the theoretical and practical aspects of the air conditioning cycle and the control of two compressors operating at different powers. 

Forced-air condenser and evaporator with variable speed flow, adjustable by a potentiometer
2x hermetic compressors
Sight glasses, dehydrator filter, check valves
Thermostatic expansion valve for gas expansion
Double pressure switch
Liquid receiver
Valve for plant vacuum, refrigerant charging and recovery.

Full set of instruments for obtaining data readings including:
Digital thermometers with probes that can be inserted at several test points along the hydraulic circuit
Residual current thermomagnetic circuit-breaker
Start button
Flowmeter
High and low pressure gauges
Wattmeter
Emergency stop button.